html,
body,
div,
span,
ul , ol ,
form,
header,
footer,
nav,
aside,
section,
article,
h1,h2,h3,h4,h5,h6,p {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: #000;
    -webkit-tap-highlight-color: transparent;
}

input , 
button {
    border: 0;
    outline: none;
    box-sizing: border-box;
}
